JPH0545871Y2

JPH0545871Y2 -

Info

Publication number: JPH0545871Y2
Application number: JP1988130787U
Authority: JP
Priority date: 1988-10-05
Filing date: 1988-10-05
Publication date: 1993-11-29
Anticipated expiration: 2003-10-05
Also published as: JPH0251745U

Description

【考案の詳細な説明】「産業上の利用分野」本考案は、モータである部材を駆動する場合、
モータへの給電を停止してもモータは慣性力で回
転するが、その慣性力を吸収してある部材に伝達
しないようにする捩り緩衝部材に関する。[Detailed description of the invention] "Industrial application field" This invention is suitable for driving a member that is a motor.
Although the motor rotates due to inertia force even when power supply to the motor is stopped, the present invention relates to a torsion buffer member that absorbs the inertia force and prevents it from being transmitted to a certain member.

「従来の技術」従来、モータの慣性力を吸収して被駆動部材に
伝達しないようにするため、第３図に示す捩り緩
衝部材が使用されている。すなわち入力軸に取付
ける鉄板Ｃに円筒状ゴム部材Ｂを接着し、ゴム部
材の他の側に鉄板Ａを接着し、鉄板Ａに設けた小
判穴部を被駆動部材側に係合させ、ゴム部材の変
形で慣性力を吸収させている。``Prior Art'' Conventionally, a torsion buffer member shown in FIG. 3 has been used to absorb the inertial force of a motor and prevent it from being transmitted to driven members. That is, the cylindrical rubber member B is glued to the iron plate C that is attached to the input shaft, the iron plate A is glued to the other side of the rubber member, the oval hole provided in the iron plate A is engaged with the driven member side, and the rubber member The inertial force is absorbed by the deformation of

「考案が解決しようとする課題」従来の捩り緩衝部材は、円筒状のゴム部材によ
り慣性力を吸収させているが、その場合は、ゴム
部材に捩りによる剪断力と引張力とを作用させる
だけの為、トルク−角度特性が急峻であり、慣性
力を十分に吸収することができなかつた。例え
ば、モータ回転力を利用して自動車の窓ガラスを
上げ下げする場合、モータへの給電を停止しても
慣性力を円筒状ゴム部材により十分に吸収するこ
とができず、モータ出力軸と鉄板Ａの間にセツト
された樹脂製連結部材の外周面のギヤーを破損
し、出力伝達を不可能にするという問題があつ
た。``Problem to be solved by the invention'' Conventional torsional shock absorbing members use a cylindrical rubber member to absorb inertia, but in that case, only shearing force and tensile force due to torsion are applied to the rubber member. Therefore, the torque-angle characteristic was steep, and the inertial force could not be sufficiently absorbed. For example, when raising and lowering a car window glass using motor rotational force, the inertia force cannot be sufficiently absorbed by the cylindrical rubber member even if the power supply to the motor is stopped, and the motor output shaft and iron plate A There was a problem in that the gear on the outer peripheral surface of the resin connecting member set between the parts was damaged, making output transmission impossible.

またゴム部材Ｂの両面にそれぞれ鉄板Ａ，Ｃを
加硫接着しなければならず、製造工程を多く要し
た。 Furthermore, the iron plates A and C had to be vulcanized and bonded to both sides of the rubber member B, which required many manufacturing steps.

そこで本考案は、慣性力を十分に吸収できるよ
うにし、モータあるいは被駆動部材等に損傷を与
えないようにするとともに、製造簡単な捩り緩衝
部材を提供する。 Therefore, the present invention provides a torsion buffer member that can sufficiently absorb inertial force, prevent damage to the motor or driven members, and is easy to manufacture.

「課題を解決するための手段」本考案は、一方の回動軸と他方の回動軸との間
に設けられる捩り緩衝部材において、一方の回動
軸に連結される円筒状の連結部材の外周に取り付
けられる弾性体を、円筒部の外周に略Ｔ字形の複
数の腕を放射状に有する形状に形成し、他方の回
転軸に連結される円盤状の第２連結部材に前記複
数の腕を有する弾性体の外形に相当する放射状の
溝を形成して、その放射状溝に弾性体を係合する
ことにより両者を連結した。"Means for Solving the Problem" The present invention provides a torsion buffer member provided between one rotation shaft and the other rotation shaft, in which a cylindrical connecting member is connected to one rotation shaft. The elastic body attached to the outer periphery is formed into a shape having a plurality of substantially T-shaped arms radially around the outer periphery of the cylindrical part, and the plurality of arms are connected to a second disc-shaped connecting member connected to the other rotating shaft. A radial groove corresponding to the outer shape of the elastic body was formed, and the elastic body was engaged with the radial groove to connect the two.

「作用」上記手段の捩り緩衝部材は、２つの連結部材が
放射状のＴ字形腕を有する弾性体を介して連結さ
れるので、例えばモータへの給電を停止したとき
の慣性力が第１連結部材に伝達されても、弾性体
のＴ字形腕が曲げ、引つ張りと大きく変形するこ
とができてトルク−角度特性は緩やかであり、そ
の慣性力を十分に吸収して、第２連結部材に伝達
することはない。また２つの連結部材の連結は、
弾性体の放射状の腕を、他の連結部材側の放射状
の溝に係合するだけでよく、しかもＴ字形腕の頭
部が対応する溝部分から抜け出すことがないの
で、前記曲げと引つ張り変形は有効に作用する。"Operation" In the torsion buffering member of the above means, the two connecting members are connected via an elastic body having radial T-shaped arms, so that, for example, when the power supply to the motor is stopped, the inertia force is applied to the first connecting member. Even when the inertia force is transmitted to the second connecting member, the T-shaped arm of the elastic body can be bent, pulled, and deformed greatly, and the torque-angle characteristic is gentle. There is no communication. Also, the connection of two connecting members is
It is only necessary to engage the radial arms of the elastic body with the radial grooves on the side of the other connecting member, and the head of the T-shaped arm does not slip out of the corresponding groove part, so that the bending and tension can be avoided. Transformation works effectively.

「実施例」本考案の実施例を第１，２図により説明する。"Example" An embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

出力軸に取付ける硬質の連結部材１は、金属に
より円筒形に形成され、その外周に例えばゴム製
の弾性体２が加硫接着される。弾性体２は連結部
材１に接する円筒部２ａと、それから放射状に突
出する略Ｔ字形の複数の腕２ｂとから形成され
る。なお、本実施例では円筒形の連結部材１の端
部に、張り出し板１ａが設けられ、その張り出し
板１ａに出力軸が固定されるようになつている。 A hard connecting member 1 attached to the output shaft is made of metal and has a cylindrical shape, and an elastic body 2 made of, for example, rubber is vulcanized and bonded to the outer periphery of the connecting member 1 . The elastic body 2 is formed from a cylindrical portion 2a in contact with the connecting member 1, and a plurality of substantially T-shaped arms 2b projecting radially from the cylindrical portion 2a. In this embodiment, a projecting plate 1a is provided at the end of the cylindrical connecting member 1, and the output shaft is fixed to the projecting plate 1a.

入力軸に取付けられるもう一方の連結部材３は
硬質な材料により略円盤形に形成され、本実施例
ではその外周部に多数の歯４が設けられて歯車に
形成される。この歯車にモータの出力軸上の歯車
がかみ合い、モータの回転力は連結部材３、弾性
体２、連結部材１へと回転伝達し、さらに被駆動
装置へ伝達する。連結部材３の側面に、前記放射
状の腕を有する弾性体２に対応した形状の放射状
の溝５が設けられる。 The other connecting member 3 attached to the input shaft is made of a hard material and is formed into a substantially disk shape, and in this embodiment, a large number of teeth 4 are provided on the outer periphery of the connecting member 3 to form a gear. A gear on the output shaft of the motor meshes with this gear, and the rotational force of the motor is rotationally transmitted to the connecting member 3, elastic body 2, and connecting member 1, and further transmitted to the driven device. A radial groove 5 having a shape corresponding to the elastic body 2 having the radial arms is provided on the side surface of the connecting member 3.

そして連結部材３の放射状の溝５内に、前記弾
性体２の放射状の腕２ｂを一致させて係合すれ
ば、両者は一体に結合され、かつ一体に回転す
る。よつて歯車伝達により入力された連結部材３
の回転力は、弾性体２を介して連結部材１に伝達
される。 When the radial arms 2b of the elastic body 2 are aligned and engaged in the radial grooves 5 of the connecting member 3, the two are coupled together and rotated together. Therefore, the connecting member 3 input by gear transmission
The rotational force is transmitted to the connecting member 1 via the elastic body 2.

「考案の効果」本考案の捩り緩衝部材は、入力軸側と出力軸側
との間に設ける弾性体が放射状の腕を有し、それ
は曲げと引つ張り変形をするので、入力側の慣性
力をほとんど吸収して、出力側に伝達することが
ない。また、弾性体を入力軸側と出力軸側との２
つの連結部材へ取付ける場合、一方の取付けは放
射状の腕を放射状の溝に係合するだけでよく、製
造上、都合がよい。``Effect of the invention'' In the torsion buffer member of the invention, the elastic body provided between the input shaft side and the output shaft side has radial arms, which deform by bending and pulling, so that the inertia on the input side It absorbs most of the force and does not transmit it to the output side. In addition, the elastic body is placed between the input shaft side and the output shaft side.
In the case of attachment to two connecting members, attachment to one only requires engaging the radial arm in the radial groove, which is convenient for manufacturing.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の捩り緩衝部材の正面図、第２
図は同緩衝部材の断面図、第３図は従来の緩衝部
材の断面図である。１……連結部材、２……弾性体、２ａ……円筒
部、２ｂ……腕、３……連結部材、５……溝。 Figure 1 is a front view of the torsion buffer member of the present invention, Figure 2 is a front view of the torsion buffer member of the present invention;
The figure is a sectional view of the same buffer member, and FIG. 3 is a sectional view of a conventional buffer member. DESCRIPTION OF SYMBOLS 1... Connection member, 2... Elastic body, 2a... Cylindrical part, 2b... Arm, 3... Connection member, 5... Groove.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

一方の回動軸と他方の回動軸との間に設けられ
る捩り緩衝部材において、一方の回動軸に連結さ
れる円筒状の連結部材の外周に取り付けられる弾
性体を、円筒部の外周に略Ｔ字形の複数の腕を放
射状に有する形状に形成し、他方の回転軸に連結
される円盤状の第２連結部材に前記複数の腕を有
する弾性体の外形に相当する放射状の溝を形成し
て、その放射状溝に弾性体を係合することにより
両者を連結したことを特徴とする捩り緩衝部材。 In a torsion buffering member provided between one rotating shaft and the other rotating shaft, an elastic body attached to the outer periphery of a cylindrical connecting member connected to one rotating shaft is attached to the outer periphery of the cylindrical part. It is formed into a shape having a plurality of approximately T-shaped arms radially, and a radial groove corresponding to the outer shape of the elastic body having the plurality of arms is formed in a disk-shaped second connecting member connected to the other rotating shaft. A torsion buffer member characterized in that the two are connected by engaging an elastic body in the radial groove.